Work procedure
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Connect diagnostic tester. See Connect diagnostic tester .
- Start engine and let run at idle.NOTE: If the engine does not start, crank engine using starter for at least 5 seconds, do not switch off ignition afterward under any circumstances.
- In diagnostic function "33 - OBD", select "Mode 3: Check DTC memory."
The number of stored malfunctions or "0 malfunctions detected" is displayed.
NOTE:- The DTC tables are sorted by SAE code.
- Stored malfunctions of Engine Control Module (ECM) are displayed under "10 - Engine electronics" and stored malfunctions of Transmission Control Module (TCM) are displayed under "1A - Transmission electronics".
- In addition, emission-relevant malfunctions are indicated in the instrument cluster via the Malfunction Indicator Lamp (MIL) -K83-.
- E-Gas -relevant malfunctions are also indicated by the Electronic Power Control (EPC) Warning Lamp -K132- ("EPC warning lamp") in the instrument cluster.
- In "Mode 2: Check operating conditions", it can be determined at which operating condition the Engine Control Module detected and stored a malfunction. See MODE 2: CHECKING OPERATING CONDITIONS .
SAE DIAGNOSTIC TROUBLE CODE EXAMPLEIndication example Explanation P0444 SAE Diagnostic Trouble Code (DTC) Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- malfunctioning wiring path or malfunctioning component Open circuit Malfunction type as text - Repair stored malfunction(s) according to DTC table:
- SAE P0xxx-DTCs. See SAE P0xxx-DTCs .
- SAE P1xxx-DTCs. See SAE P1XXX-DTCS .
- SAE P2xxx-DTCs. See SAE P2XXX-DTCS .